This Week in PNAS

In the PNAS Early Edition this week, researchers at Johns Hopkins University and the National Cancer Institute report the role of Hfq, an RNA chaperone in E. coli.

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Researchers report using genotyping to tie together illegal ivory shipments and trace them back to a handful of cartels, the New York Times reports.

Researchers find that historical factors influence which genes are the most highly studied, the Atlantic reports.

The US National Science Foundation's new sexual harassment policy is to go into effect next month, according to Nature News.

In Nature this week: genomic ancestry analysis of Sardinians, current noncoding mutations in colorectal cancer, and more.